# US 11,440,328 B2 · Ink cartridge having inner container and processing method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,328 B2 - Document ID: US11440328B2 - Status: Granted - Kind: B2 - Application number: 17/310,310 - Filed: 2020-01-23 - Published: 2022-05-12 - Granted: 2022-09-13 - Earliest claimed: 2019-01-30 - Assignees: Speed Infotech (Beihai) Company Limited - Applicants: Speed Infotech (Beihai) Company Limited - Inventors: Chenhai Zhao; Baohai Li - Web page: https://patentgrep.com/patent/US11440328B2 ## CPC - B41J 2/17546: {electronically} - B41J 2/17513: {Inner structure} - B41J 2/1752: {Mounting within the printer} - B41J 2/17553: {Outer structure} - B41J 2/17559: {Cartridge manufacturing} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract The present application discloses an inner container type ink cartridge and a manufacturing method thereof. The manufacturing method includes the following steps: removing an upper cover of an original ink cartridge to obtain a cartridge shell; electrically connecting an external control circuit board with an original control circuit board of the original ink cartridge; arranging an internal control circuit board at a corresponding position of an inner container; and installing the inner container in the cartridge shell, so that internal contacts of the internal control circuit board of the inner container are electrically connected with the external control circuit board. A first chip of the external control circuit board or a second chip of the internal control circuit board is written with actual ink volume data of the inner container and an adopted program. ## Claims ### Claim 1 A manufacturing method of an inner container type ink cartridge, comprising the following steps: S10, removing an upper cover of an original ink cartridge to obtain a cartridge shell; S20, electrically connecting an external control circuit board with an original control circuit board of the original ink cartridge, so that contacts on the original control circuit board communicate with the external control circuit board; S30, arranging an internal control circuit board at a corresponding position of an inner container; and S40, installing the inner container in the cartridge shell, so that internal contacts of the internal control circuit board of the inner container are electrically connected with the external control circuit board to obtain the inner container type ink cartridge; wherein a first chip of the external control circuit board or a second chip of the internal control circuit board is written with actual ink volume data of the inner container and an adopted program; and wherein the external control circuit board and the internal control circuit board are connected through a conductive piece. ### Claim 2 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein in step S20, a communication hole is formed in the cartridge shell to connect the external control circuit board to the original control circuit board of the original ink cartridge, so that the contacts on the original control circuit board communicate with some external contacts at corresponding positions of the external control circuit board in a one-to-one correspondence mode, and remaining external contacts extend into the cartridge shell through the communication hole. ### Claim 3 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein two circuit connection ports of the conductive piece are respectively connected with the external contacts on the external circuit board and the internal contacts on the internal control circuit board. ### Claim 4 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein in step S20, some external contacts of the external control circuit board are connected to the original control circuit board, and the external control circuit board is bent along the cartridge shell into the shell slot, so that remaining external contacts on the external control circuit board are located in the shell slot. ### Claim 5 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein in step S10, after removing the upper cover of the original ink cartridge, a grid in an inner cavity of the original ink cartridge is milled off, a sponge is taken out, and ink in the inner cavity of the original ink cartridge is washed off. ### Claim 6 (depends on 5) The manufacturing method of the inner container type ink cartridge according to claim 5, wherein after step S40, the method also comprises step S41: cleaning the sponge taken out, and putting the sponge into the inner container. ### Claim 7 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein in step S20, the contacts on the original control circuit board are welded with some external contacts at corresponding positions of the external control circuit board in a one-to-one correspondence mode, so as to communicate with each other. ### Claim 8 (depends on 1) The manufacturing method of the inner container type ink cartridge according to claim 1, wherein the internal contacts of the internal control circuit board in step S30 are arranged on an end face, away from the inner container, of the internal control circuit board. ### Claim 9 An inner container type ink cartridge, comprising: a cartridge shell, the cartridge shell being provided with a shell slot, and the cartridge shell being provided with an original control circuit board; an external control circuit board, the external control circuit board being provided with a first chip, and the external control circuit board electrically communicating with the original control circuit board; and an inner container and an internal control circuit board, the internal control circuit board being installed on the inner container, the internal control circuit board being provided with a second chip, and the internal control circuit board being provided with internal contacts; wherein after the inner container is placed in the cartridge shell, the external control circuit board electrically communicates with the internal contacts, and the first chip or the second chip stores actual ink volume data of the inner container and an adopted program; and wherein the external control circuit board and the internal control circuit board are connected through a conductive piece. ### Claim 10 (depends on 9) The inner container type ink cartridge according to claim 9, wherein the cartridge shell is provided with a communication hole, so that external contacts, corresponding to the internal contacts, on the external control circuit board penetrate through the communication hole and extend into the shell slot, and after the inner container is placed in the shell slot, the external contacts in the shell slot communicate with the internal contacts. ### Claim 11 (depends on 9) The inner container type ink cartridge according to claim 9, wherein two circuit connection ports are arranged on the conductive piece, and the two circuit connection ports of the conductive piece are respectively connected with the external contacts of the external control circuit board and the internal contacts of the internal control circuit board. ### Claim 12 (depends on 9) The inner container type ink cartridge according to claim 9, wherein an opening of the cartridge shell is provided with a connection slot, so that the external control circuit board is clamped on the connection slot, some external contacts communicate with the original control circuit board, and remaining external contacts are located in the shell slot; in this way, after the inner container is placed in the shell slot, the internal contacts communicate with the external contacts located in the shell slot. ### Claim 13 (depends on 9) The inner container type ink cartridge according to claim 9, wherein some external contacts on the external control circuit board are connected with the contacts on the original control circuit board, the external control circuit board is bent into the shell slot along the mouth of the shell slot, and remaining external contacts are located in the shell slot, so that when the inner container is installed in the shell slot, the external contacts in the shell slot communicate with the internal contacts.